公开(公告)号：WO2008085845A3

公开(公告)日：2009-07-02

申请号：PCT/US2008000057

申请日：2008-01-02

Applicant: APPLE INC ,  LEROUGE JULIEN ,  FASOLI GIANPAOLO ,  FARRUGIA AUGUSTIN J

Inventor： LEROUGE JULIEN ,  FASOLI GIANPAOLO ,  FARRUGIA AUGUSTIN J

IPC: G06F7/04 ,  H04N7/16 ,  H04N7/167

CPC classification number: H04N7/163 ,  H04N5/913 ,  H04N7/1675 ,  H04N21/41407 ,  H04N21/4325 ,  H04N21/4398 ,  H04N21/4402 ,  H04N21/4408 ,  H04N2005/91364

Abstract: Method and apparatus to prevent hacking of encrypted audio or video content during playback. Hackers, using a debugging attachment or other tools, can illicitly access encrypted data in memory in a playback device when the data is decrypted during playback and momentarily stored in digital form. This hacking is defeated here by methodically 'poisoning' the encrypted data so that it is no longer playable by a standard decoder. The poisoning involves deliberate alteration of certain bit values. On playback, the player invokes a special secure routine that provides correction of the poisoned bit values, for successful playback.

Abstract translation: 播放期间防止加密音频或视频内容黑客入侵的方法和装置。 使用调试附件或其他工具的黑客可以在播放过程中解密数据并立即以数字形式存储时非法访问播放设备中的加密数据。 这个黑客在这里通过有条不紊地“加密”加密的数据，使其不再由标准的解码器播放而被击败。 中毒涉及故意改变某些位值。 在播放时，播放器调用特殊的安全程序，提供中毒位值的校正，以便成功播放。